Ohio State University Algebraic Geometry Seminar


Ohio State University Algebraic Geometry Seminar Year 2026-2027 Time: Tuesdays 10:20-11:15am Location: MW 154 (in person) or Zoom (virtual, email the organizers for the Zoom coordinates)

Schedule of talks:


TIME	SPEAKER	TITLE
September 22 Tue, 10:20am	Jon Kim (UC Boulder)	The log MMP for the moduli space of cubic surfaces with a marked line
September 29 Tue, 10:20am	Dawei Chen (Boston College)
October 6 Tue, 10:20am	Keller VandeBogert (Kentucky)
October 13 Tue, 10:20am	Angélica Cueto (OSU)
October 20 Tue, 10:20am	Colin Defant (Harvard)
November 17 Tue, 10:20am	Ayah Almousa (Kentucky)

See also the Arithmetic Geometry Seminar

Abstracts

(Kim): The moduli space of cubic surfaces with a marked line lies naturally between the moduli space of fully marked and unmarked cubic surfaces and comes equipped with a $W(D_5)$-action corresponding to the stabilizer of the marked line. Hodge theoretic compactifications of these moduli spaces have been extensively studied by many, including Allcock—Carlson—Toledo, Dolgachev—van Geemen—Kondo, and Casalaina-Martin—Grushevsky—Hulek. In previous work, by using KSBA wall crossing, we described many different birational models of this moduli space via KSBA stable pairs. In this talk, we will discuss recent results regarding the $W(D_5)$-invariant birational geometry of these KSBA moduli spaces and ongoing work on the log minimal model program for these KSBA moduli spaces with respect to their log canonical divisor.